How do you get the Noxus Icon?
It was a mission or event reward. Riot's description in the client reads: “Earned by completing Noxus-related missions in 2018 or during the release of the Runeterra map.”
Is the Noxus Icon still available?
No. Riot tied the Noxus Icon to 2018 (mission reward), and it does not normally bring back past event rewards or bundles.
